Shirahama Onsen

What to expect

Shirahama is a seaside hot spring town on the southwest coast of the Kii Peninsula in Wakayama. Big resort hotels line a bay of pale sand, Shirarahama, and the hot spring district runs from the beach south to the rocky Yuzaki headland. It is a summer beach resort as much as an onsen town, and in July and August it fills with families from the Osaka and Kyoto area.

The history is real. The Nanki Shirahama Tourism Association notes that the Nihon Shoki records Prince Arima’s visit in 657, and Empress Saimei came the following year. Later visits by Empress Jito and Emperor Monmu are also recorded. That is why Shirahama is grouped with Dogo and Arima as one of Japan’s three oldest recorded hot springs.

The association counts 15 sources and 23 bathing spots in the wider town, including foot baths. The water is mostly chloride, sulphur and bicarbonate types, often sulphur-sodium chloride. For a visitor, the useful part is that several bathhouses run by the town or locals charge a few hundred yen, and you can visit all of them in a day.

The public baths

Saki-no-yu is the famous one. It is an open-air rock pool on the Yuzaki shore, the only survivor of the seven ancient baths of Yuzaki, set so low that the Pacific is a few metres away and spray reaches it on rough days. It is split into men’s and women’s sides. Entry is ¥500 for anyone aged 3 and up. There is nowhere to wash, and you may not wash your hair or body. Hours change by season: 8:00 to 17:00 from October to March, 8:00 to 18:00 in April to June and September, and 7:00 to 19:00 in July and August. It is open daily apart from maintenance closures. For full detail, see our Saki-no-yu page.

Shirara-yu is a traditional neighbourhood bathhouse with a bandai (a raised attendant’s desk) and windows looking over Shirarahama beach. Its water comes from the Suzushi-yu source.

Muro-no-yu, on the Yuzaki side, takes water from two sources, the Mabu-yu and the Miyuki-yu. The tourism association calls Miyuki the oldest source in Shirahama.

Matsuno-yu is a quiet community bath near the town centre, on the Suzushi-yu source.

Shirasuna is a large free open-air bath on Shirarahama beach. Men and women bathe together in swimsuits, and it takes about 100 people. It opens only in the beach season.

The town also has free foot baths, including Yuzaki Hamahiroba, Tsukumoto, Yanagibashi, Mifune and one at the Sandanbeki cliffs.

Prices and hours

Prices from the tourism association in October 2026:

Bath	Adults	Children	Hours	Closed
Shirara-yu	¥420	¥140 (6-11), ¥80 (3-5)	9:00-11:00, 14:00-21:30	Thursdays
Muro-no-yu	¥420	¥140 (6-11), ¥80 (3-5)	9:00-11:00, 14:00-21:30	Tuesdays
Saki-no-yu	¥500 (ages 3+)		Seasonal, see above	No regular day
Matsuno-yu	¥400	¥150 / ¥100	13:00-21:00	Tuesdays, 3rd Wednesday, Jan 1-4
Shirasuna	Free	Free	10:00-15:00 (May, Jun, Sep), 12:00-17:30 (Jul, Aug)	Weekdays in May, Jun, Sep

At Shirara-yu and Muro-no-yu, 7:00 to 9:00 is reserved for town residents since March 1, 2024, and last entry is at 21:00. The gap from 11:00 to 14:00 is not open to visitors. At Shirasuna, last entry is 30 minutes before closing, and the town tourism division (0739-43-6588) warns that hours can change.

Soap and towels are sold at Shirara-yu and Muro-no-yu. Free parking is small: 6 spaces at Shirara-yu, 7 at Muro-no-yu and 15 at Saki-no-yu.

Many hotels also sell day baths. The tourism association’s list flags Toretore-no-yu, Shirahama Koganoi Resort and Spa and others as open to day visitors.

Onsen etiquette

• Wash before you get in. At Saki-no-yu you cannot wash, so do it at your hotel or at Muro-no-yu first.
• Bathe naked in the separate men’s and women’s baths. Swimsuits are only for Shirasuna.
• Under Wakayama’s public bath ordinance, children of about 7 and older must use their own sex’s side in the town baths.
• Keep your towel out of the water and dry off before the changing room.
• The tourism association publishes no tattoo rule for these baths. Phone ahead if it matters to you.

Getting there

• By train: the JR Kinokuni Line limited express Kuroshio reaches Shirahama Station in about 2 hours 15 minutes from Tennoji, 2 hours 30 minutes from Osaka, 2 hours 40 minutes from Shin-Osaka and 3 hours from Kyoto. A bus or taxi to the onsen area takes 10 to 15 minutes. Meiko Bus links the station, the onsen area and Adventure World.
• By air: JAL flies from Haneda to Nanki-Shirahama Airport in about 75 minutes. The onsen area is 10 to 15 minutes away.
• By car: the Hanwa and Kisei expressways run to Nanki-Shirahama IC, about 10 minutes from town and about 2 hours from Osaka.
• Bus stops: Saki-no-yu and Muro-no-yu are about 5 minutes on foot from the Yuzaki stop. Shirara-yu is about 5 minutes from the Shirarahama stop.

When to go

Shirahama is warm all year by Japanese standards. Summer is the busiest time: the beach is open, Shirasuna runs daily and Saki-no-yu stays open until 19:00. Hotels fill and prices rise. Spring and autumn are quieter and still mild, and are the best seasons for the town baths. Winter brings rough seas, when Saki-no-yu feels most dramatic but can close if conditions are bad. Check the opening days of Shirara-yu (closed Thursdays) and Muro-no-yu (closed Tuesdays) so you are not caught out.

Where to stay nearby

Shirahama has dozens of hotels and ryokan, from large resorts on Shirarahama beach to smaller inns at Yuzaki. The tourism association lists them on its site. Tsubaki Onsen, a quieter spring area to the south in the same town, has its own inns and a roadside station bath, Tsubaki Hana-no-yu.

Further south along the coast are Nachikatsuura Onsen and the Kumano Kodo hot springs, such as Kawayu Onsen.

Nearby stops worth adding

Sandanbeki cliffs and Senjojiki rock shelf are short drives from the baths. Adventure World, a large zoo and theme park, is on the bus line from the station. The Toretore Ichiba fish market near the station has its own day bath, Toretore-no-yu.

Safety notes

• Waves at Saki-no-yu: the pool sits right on the rocks. Do not climb down towards the sea, and leave if waves start washing in.
• Heat: keep soaks short, particularly in summer, and drink water.
• Wet rock: the rock floors and paths around Saki-no-yu are slippery.
• Sun: at Shirasuna you are sitting in hot water on an open beach. Take a hat and sunscreen.